Research on next generation xPON.pptx

Research on Next Generation xPON Fu Shaosong 1、Introduction. 2、What will NG xPON be Like?? 3、Compare pros and cons for each trend each technology. 4、Identify major players and emerging startups?. 5、Summary. Outline With the development of many advanced multimedia applications, there is a massive increase in bandwidth demand. According to the June 2010 forecast of the Cisco Visual Networking Index , total global Internet Protocol traffic will quadruple from 2009 to 2014, reaching 63.9 exabytes (EBs) per month, or 766.8 EBs per year (Figure 1). Introduction In order to support this ever-increasing demand for higher broadband bandwidth, Passive optical network (PON) technology is emerging as the key access technology, as it has a scalable and cost-effective architecture to satisfy the ever-growing bandwidth requirements generated by advanced applications such as high-definition television (HDTV) and IPTV. PON Overview A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 16-128. A PON consists of an optical line terminal (OLT) at the service provider‘s central office and a number of optical network units (ONUs) near end users(Figure2). GPON and EPON Different flavors of PON standards have been specified by two standard bodies, International Telecommunications Union (ITU) and Institute of Electrical and Electronics Engineers (IEEE). Standard Completed year Upstream Downstream Payload encapsulation GPON ITU-T G.984 2008 2.488Gbps 1.224Gbps GEM EPON IEEE802.3 2004 1Gbps 1Gbps Native Ethernet Bandwidth Requirement Drives NG PON Evolution  Building on the GPON(FSAN) and EPON(IEEE)standards, NG-PONs are mainly envisioned to (i) Achieve higher performance parameters, e.g., higher bandwidth per subscriber, increased split ratio, and extended maximum reach, than current EPON/GPON architectures . (ii) Br